Coffee maker



FIG. 1 is a front perspective view of a coffee maker showing our new design;

FIG. 2 is a right side view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a rear view thereof;

FIG. 6 is top view thereof; and,

FIG. 7 is a bottom view thereof.

The broken lines in the drawing depict portions of the coffee maker that form no part of the claimed design 

CLAIM The ornamental design for a coffee maker, as shown and described. 